htop author here. It was nice seeing the table in the article with the memory split in three colors and thinking "well, but that's how I already split it in htop, isn't it?".
The "Linux calls it" column should probably be called "top calls it"...
It was accidental too. I was just showing my coworker something and I have a bad habit of highlighting stuff I am reading and randomly clicking on text, and I noticed that column was selected to be sorted. It blew my mind, this was in an SSH session logged into a remote server.
The "Linux calls it" column should probably be called "top calls it"...